Oh, this one was actually a tough one for me... I had to go with Help! though, partly because I was treated to a horrible version of She loves you courtesy of the duo The Boys when I was young, and I've had an unfair dislike for the song ever since.

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You can have my love, you can have my smiles. Forget the bad parts, you don't need them. Just take the music, the goodness, because it's the very best, and it's the part I give most willingly.